In the following circuit,the emf of the sourc | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Given: $E_0 = 200 \, V$,$R = 20 \, \Omega$,$L = 0.1 \, H$,$C = 10.6 \, F$.$1$. At frequency $f = 0$ ($DC$ source):The inductive reactance is $X_L

Vedclass · Accepted Answer

Zero,zero

Vedclass · Answer

(D) Given: $E_0 = 200 \, V$,$R = 20 \, \Omega$,$L = 0.1 \, H$,$C = 10.6 \, F$.$1$. At frequency $f = 0$ ($DC$ source):The inductive reactance is $X_L = 2 \pi f L = 0 \, \Omega$.The capacitive reactance is $X_C = \frac{1}{2 \pi f C} = \infty$.Since the components are in series,the total impedance $Z = \sqrt{R^2 + (X_L - X_C)^2} = \infty$.Therefore,the current $I = \frac{E_0}{Z} = 0 \, A$.$2$. At frequency $f = \infty$:The inductive reactance is $X_L = 2 \pi f L = \infty$.The capacitive reactance is $X_C = \frac{1}{2 \pi f C} = 0 \, \Omega$.Since the components are in series,the total impedance $Z = \sqrt{R^2 + (X_L - X_C)^2} = \infty$.Therefore,the current $I = \frac{E_0}{Z} = 0 \, A$.Thus,in both cases,the current is zero.

In the following circuit,the emf of the source is $E_0 = 200 \, V$,$R = 20 \, \Omega$,$L = 0.1 \, H$,and $C = 10.6 \, F$. If the frequency is variable,then the current at frequency $f = 0$ and $f = \infty$ is:

Similar Questions

Consider the $L-C-R$ circuit given below. The circuit is driven by a $50 \,Hz, AC$ source with peak voltage $220 \,V$. If $R=400 \,\Omega, C=200 \,\mu F$ and $L=6 \,H$,the maximum current in the circuit is closest to ............ $A$.

In the given $A.C.$ circuit,the instantaneous currents through the inductor and capacitor are $0.8 \,A$ and $0.4 \,A$ respectively. The instantaneous current through the resistor is:

In the given circuit,the magnitudes of $V_{L}$ and $V_{C}$ are twice that of $V_{R}$. Given that $f=50\,Hz$ and $R=5\,\Omega$,the inductance of the coil is $\frac{1}{K\pi}\,mH$. The value of $K$ is:

In an $LCR$ series circuit $R=10 \,\Omega, X_L=8 \,\Omega$ and $X_C=6 \,\Omega$. The total impedance of the circuit is ........ $\Omega$.

In an $LCR$ series circuit,if $R = X_L = 2X_C$,find the impedance and the phase difference between the current and the voltage.

Vedclass Test Series

Exam Paper Generator

Online Exam Module